Abstract: Disclosed is slick water volumetric fracturing method with large liquid volume, high flow rate, large preflush and low sand ratio, including the following steps: (a) evaluating the reservoir parameters; (b) determining the perforation position and a perforation parameters of a fracturing interval; (c) determining the fracturing parameters; (d) performing a perforation operation on the fracturing interval; (e) injecting acidizing fluids into the perforation; (f) alternately injecting preflush and sand-laden fluids into the fracturing interval several times; (g) injecting displacement fluids into the fracturing interval; wherein the flow rate is not less than 12 m3/min. The beneficial effect of the technical scheme proposed in the present invention is: by using a low viscosity slick water fracturing fluid with high flow rate, the pressure of the fracturing fluid is increased, thereby increasing the stimulated reservoir volume and increasing the fracturing yield.

Abstract: Disclosed is an integrated construction method of fracturing and tertiary oil recovery for low-permeability reservoir, including the following steps: dividing the target layer into several fracturing intervals; determining the amount of fracturing fluid required for the target fracturing interval; determining the flow rate of the target fracturing interval; determining the pumping construction procedure for the target fracturing interval; perforating the target fracturing interval; injecting oil displacement fracturing fluid into the target fracturing interval for fracturing construction; wherein the oil displacement fracturing fluid is a fracturing fluid to which an oil displacement agent is added.

Abstract: Disclosed is slick water volumetric fracturing method with large liquid volume, high flow rate, large preflush and low sand ratio, including the following steps: (a) evaluating the reservoir parameters; (b) determining the perforation position and a perforation parameters of a fracturing interval; (c) determining the fracturing parameters; (d) performing a perforation operation on the fracturing interval; (e) injecting acidizing fluids into the perforation; (f) alternately injecting preflush and sand-laden fluids into the fracturing interval several times; (g) injecting displacement fluids into the fracturing interval; wherein the flow rate is not less than 12 m3/min. The beneficial effect of the technical scheme proposed in the present invention is: by using a low viscosity slick water fracturing fluid with high flow rate, the pressure of the fracturing fluid is increased, thereby increasing the stimulated reservoir volume and increasing the fracturing yield.

Abstract: Disclosed is an integrated construction method of fracturing and tertiary oil recovery for low-permeability reservoir, including the following steps: dividing the target layer into several fracturing intervals; determining the amount of fracturing fluid required for the target fracturing interval; determining the flow rate of the target fracturing interval; determining the pumping construction procedure for the target fracturing interval; perforating the target fracturing interval; injecting oil displacement fracturing fluid into the target fracturing interval for fracturing construction; wherein the oil displacement fracturing fluid is a fracturing fluid to which an oil displacement agent is added.